heterozygous

adjective het·ero·zy·gous \-gəs\

Definition of HETEROZYGOUS

: having the two alleles at corresponding loci on homologous chromosomes different for one or more loci

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1902

Medical Dictionary

adjective het·ero·zy·gous \-gəs\

: having the two genes at corresponding loci on homologous chromosomes different for one or more loci—compare homozygous

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